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Finding the Fourth Proportional to 1,534.41, 2,117.49 and 835.79

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Solution

The fourth proportional to 1,534.41, 2,117.49 and 835.79 is: 1,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.41 : 2,117.49 = 835.79 : x
  2. Step 2: Convert to fraction form
    1,534.41/2,117.49 = 835.79/x
  3. Step 3: Cross multiply
    1,534.41x = 2,117.49 × 835.79
  4. Step 4: Simplify right side
    1,534.41x = 1,769,766.38
  5. Step 5: Solve for x
    x = 1,769,766.38/1,534.41
  6. Step 6: Final answer
    x = 1,153.39

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.